A.x+
| B.(x-6)+(
| ||||
C.(x-6)+
| D.(x-6)+
|
x |
2 |
x |
2 |
A.3x+9-x=19 | B.2(9-x)+x=19 | C.x(9-x)=19 | D.3(9-x)+x=19 |
A.5x=3(32-x) | B.3x=5(32-x) | C.3x=32-x | D.6x=32-x |
A.1990 | B.1991 | C.1992 | D.1993 |
A.200x+50(22-x)=1400 | B.1400-200x=50(22-x) | ||
C.
| D.50x+200(22-x)=1400 |
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